National 710484 Automatic Transmission Torque Converter Seal - Front

Overview of National 710484 Automatic Transmission Torque Converter Seal

The National 710484 automatic transmission torque converter seal is engineered to provide reliable sealing performance for a range of vehicles including Audi, Ford, Porsche, and Volkswagen models. Designed with precision dimensions and durable materials, this seal helps maintain transmission fluid integrity and prevents leaks in demanding driving conditions.

• Inside diameter: 1.772 inches (45.000 mm)
• Outside diameter: 2.295 inches (58.290 mm)
• Thickness: 0.276 inches (7.000 mm)
• Material: Fluoro-elastomer for enhanced chemical and temperature resistance
• Helix type: Clockwise-spiral lip design for effective sealing
• Compatible housing bore: 2.283 inches (58.000 mm)
• Part type: Automatic transmission torque converter oil seal

Detailed Product Description and Specifications

The National 710484 torque converter seal is constructed from fluoro-elastomer, a material known for its resistance to heat, oil, and wear, making it suitable for automatic transmissions in vehicles such as the Audi A4 Quattro, Ford F-150, and Porsche Boxster. The seal features a clockwise-spiral lip design that enhances sealing efficiency by maintaining consistent contact with the shaft, reducing the risk of fluid leakage. With an inside diameter of 1.772 inches and an outside diameter of 2.295 inches, this seal fits precisely within a housing bore of 2.283 inches, ensuring a secure fit and optimal performance. The 0.276-inch thickness provides durability without compromising flexibility.

Applications and Common Issues Addressed

• Prevents automatic transmission fluid leaks in torque converter assemblies
• Reduces contamination ingress that can cause premature transmission wear
• Maintains hydraulic pressure for smooth transmission operation
• Addresses seal wear and degradation in Audi, Dodge, Ford, Lincoln, Mercury, Porsche, Saab, and Volkswagen models
• Helps avoid costly transmission repairs related to fluid loss

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Lubricate the seal lip with transmission fluid to prevent dry starts
• Use proper tools to avoid damaging the seal during installation
• Verify correct orientation of the clockwise-spiral lip design for effective sealing
• Check fitment compatibility with specific vehicle models such as the Audi A6 Quattro or Ford Explorer Sport Trac

Quality Assurance and Warranty Information

Manufactured by National, a recognized brand in transmission sealing systems, the 710484 seal meets industry standards for durability and performance. The use of fluoro-elastomer material ensures resistance to high temperatures and chemical exposure typical in automatic transmissions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, providing confidence in the product's reliability.